document.write( "Question 1139526: Triangles ABC and DEF are similar.\r
\n" ); document.write( "\n" ); document.write( "Find the perimeter of triangle DEF. (Assume b = 4 cm, c = 5 cm, d = 12 cm, and f = 10 cm.) \n" ); document.write( "

Algebra.Com's Answer #760001 by ikleyn(52779) $\"\"$ $\"About$

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document.write( "The similarity coefficient \"k\" is the ratio of \"f\" to \"c\"   k =  = 2.\r\n" );
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document.write( "Hence, the side \"e\" is  e = k*b = 2*4 = 8.\r\n" );
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document.write( "Then the perimeter of triangle DEF is  d + e + f = 12 + 8 + 10 = 30 cm.   ANSWER\r\n" );
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